| Irrgast | vagrant |
| Irrgang | aberration wandering path wrong path wrong track wrong way |
| Irrfahrt | odyssey random walk |
| Irrgarten | labyrinth maze knot garden |
| Irrsal | blunder |
| irreal | unreal unreally |
| Burgas | Burgas |
| Fahrgast | passenger |
| vergagt | gimmicky |
| Erdgas | natural gas |
| Gast | guest invitee visitor sojourner visitant |
| Morast | morass bog |
| Rast | break rest |
| Irre | madwoman astray lunatic |
| irre | crazy insane mad |
| Irrer | crazy |
| Irrglaube | misbelief misconception |
| Irrlicht | will o' the wisp |
| Irrsinn | insanity lunacy madness |
| Irrtum | mistake error fallacy misapprehension |